Silicon nitride ceramics have been included in the official version of the "Directory of Technologies and Products Encouraged for Promotion and Application in the Building Materials Industry

To promote the application and popularization of new technologies and new products in the building materials industry, guide various elements to flow into emerging industries in the building materials sector and the technological transformation of traditional industries, and accelerate the high-end, intelligent and green transformation and upgrading of the building materials industry, our department has compiled the "Catalogue of Technologies and Products Encouraged for Promotion and Application in the Building Materials Industry (2025 Edition)" and is hereby announcing it.

Main technical and economic indicators of silicon nitride materials

1. Isostatic Pressed Silicon Nitride Ceramic Balls:

(1) The material performance meets the requirements of ASTM F2094 2018a, level I.

(2) Flexural strength ≥ 900 MPa;

(3) Fracture toughness 6 - 9 MPa·m^1/2;

(4) Hardness HV10 ≥ 1480 kg/mm²;

(5) Roundness ≤ 0.1 μm;

(6) Batch diameter variation ≤ 0.10 μm.

2. High Thermal Conductivity Substrates:

(1) Thermal conductivity ≥ 80 W/(m·K);

(2) Flexural strength ≥ 600 MPa;

(3) Fracture toughness ≥ 6 MPa·m^1/2.

3. High Purity Silicon Nitride Powder:

(1) α-silicon nitride ≥ 95% or more;

(2) D50 between 0.5 - 0.8 μm;

(3) Oxygen content ≤ 0.8 wt%;

(4) Total amount of alkali metals and alkaline earth metals ≤ 0.05 wt%.

FAQ:

1. What are the main properties of silicon nitride ceramics?

- Silicon nitride ceramics are known for their high strength, excellent thermal shock resistance, and superior wear resistance.

2. How are silicon nitride ceramics used in the building materials industry?

- Silicon nitride ceramics are commonly used in the building materials industry for applications such as cutting tools, bearings, and high-temperature components due to their durability and thermal properties.

3. What advantages do silicon nitride ceramics offer compared to other materials?

- Silicon nitride ceramics offer advantages such as high strength, low thermal expansion, and resistance to corrosion, making them ideal for demanding industrial applications.

4. How does the inclusion of silicon nitride ceramics in the "Directory of Technologies and Products Encouraged for Promotion and Application in the Building Materials Industry" impact the market?

- The inclusion of silicon nitride ceramics in the directory signifies their importance and potential for growth in the building materials industry, leading to increased adoption and investment in research and development.

5. What are some common applications of silicon nitride ceramics outside of the building materials industry?

- Silicon nitride ceramics are also used in industries such as automotive, aerospace, and electronics for their high performance and reliability in extreme conditions.

6. Main industries using silicon nitride parts?

- Metallurgy & foundry

  Mechanical equipment & wear parts

  Automotive & engine components

  Semiconductor & high-temperature fixtures

  Pump plungers, welding accessories, wear sleeves

  Industrial furnace components

Please contact us anytime should you require more information.